GB/T 2930.2-2001 Inspection procedures for forage seeds - Purity analysis
Some standard content:
[CS G5. 020. 20
National Standard of the People's Republic of China
GB/T 2930. 1 2930. 11—2001
Rules for forage seed testing2001-03-14 Issued
2001-06-01 Implementation
Technical supervision of forage seed quality
G1/T 2930. 2-- 2001
The standard is revised based on the 2009 edition of the International Association of Seed Testing.
This standard mainly contains technical contents on protected species and their testing methods, etc. 1. Equivalent to the previous generation! The third part of the international standard 1SIA, 1S> purity analysis: In addition, the document has some ancestral species that are not listed in the international current technical procedures, but have continuous economic value in my country and are suitable for inspection. At present, only the advancement and scientificity of international standards can meet the actual needs of my country's clinical work. The main changes to the fourth part of K2930192 include the addition of relevant species\purity analysis\"seed\sensitivity points", and the addition of "supplements" and "analysis and calculation methods of difficult to distinguish plant species\". In addition, major amendments and changes have been made to the text, inspection procedures, numerical revisions, etc. This standard is one of the series of standards for inspection and testing of forage seeds (13/T9.10.1--2931.112001G). This series of standards includes the following components: GB/T 2033.1-2001 GB/T 2930.2-2001 Inspection procedures for forage seeds GB/T 2535.3-2001 Inspection procedures for forage seeds GB/T 2930.4-2001 GB/T 2933.5--2001 GR/T 2935.G:-2001
(B/2939.7:202
Single seed inspection and testing procedures
Forage grass seed inspection and testing procedures
Forage seed inspection and testing procedures
Single seed inspection and testing procedures
Forage seed age inspection and testing procedures
GB/T 2930.8-2001
Reform seed inspection and testing procedures
GB/T 2U31. 3 ~2001
Clearness standard
Other dried species determination
Drying test
Biochemical study of vitality
Healthy determination
Species and variety basic determination
Drying test
Mutual test
Gr5/T2933.10-001 Forage grass species registration and inspection of the current coated seeds G32930, 1120 Forage grass species stock I book age report revised standard in the correct writing format L· and international current right· standard difference. The regulations should put all the items after the full text of the inspection items, and most of the contents of the above regulations are in the items. , a previous counter gold license is required when using it, and the version is not used. In the compilation of this standard, each item will be marked with an independent abbreviation and the main content will be compiled in the main text. The relevant closed records will be recorded immediately after the main text of the standard. This standard will be implemented from the date of implementation (Appendix B of this standard, Appendix B of the product standard, etc.). This standard was drafted by the Ministry of Agriculture of the People's Republic of China and was taken over by the Ministry of Agriculture of China. The grass seed quality supervision and inspection center (Lanzhou) was responsible for the drafting of the standard. The grass seed quality supervision and inspection center was responsible for the design and improvement of the standard. The main people who want to add single items are: Xie Li Xiu Xue, Yu Price, Sun Chain, Weidong: 13
GB/T2930.2—2001
ISTA Foreword
One of the greatest risks to the clothing industry is the failure of the sown products to be rectified and their productivity. In order to assess the quality of the seeds at sowing, this risk is minimized. The concept of seed quality is a combination of characteristics. These factors are important to all sectors of the seed industry, including producers, distributors, storage operators, operators, farmers, certification bodies, and government agencies or departments responsible for seed management. In all cases, the inspection team will do their utmost to determine the seed price, Seed products are life-threatening products, so their status cannot be accurately described like the inspection of inanimate or biological products: the methods adopted must be based on the knowledge of seed materials and the accumulated experience of seed inspectors. The new requirements for accuracy and reproducibility are determined by the current standards and methods stipulated in the test procedures and the international seed quality monitoring and evaluation. Therefore, high accuracy and reproducibility of the inspection methods must be required. Due to the lack of international pressure on seed products, it is possible that inspection laboratories in different countries may use very complicated standard methods according to the clinical situation. Therefore, consistent inspection results can be obtained within a certain range: this standard is divided into the meaning and appendix of the standard. The main text of the regulation explains the purpose and principles of each test, the meaning of the test, and the methods and procedures used are summarized in the appendix. The requirements and methods specified in the regulations are listed in the appendix. If the inspection results are reported to the international seed inspection committee, the requirements must be strictly followed. The interpretation of the previous clauses of the regulations and the relevant provisions in the regulations are changed. When the national seed quality management law is implemented, the institute can use the latest regulations and some product conditions. However, it is not necessary to use the international seed inspection committee certificate in this case. It is also recognized that if the conditions and conditions do not conform to the international standards accepted by the institute, the seeds will flow freely between countries. The seed inspection (0TV1) is a kind of seed inspection based on the requirements of the special pieces sent for inspection. This inspection needs to consider factors such as the seasonality of the seeds, the soil type and the changes in the soil quality. This standard and the appendix are for reference only and are intended to provide a reference for the production of seeds and grains. The relevant literature and other technical documents may be used to supplement this standard and the appendix. It is not intended for every group, but the original work is also applicable to other groups not covered by the standard. In addition, it is not necessary to refer to the instruments and equipment of the manufacturer for the specifications. If the SA recognizes such instruments and equipment, it will exclude the products of other manufacturers. +
1 Scope
National Standard of the People's Republic of China
Regulations for Inspection of Forage Seeds Purity Analysis
Rules of Fur Faragr Seed Testing-Purlly Malalysis This standard specifies the method for determining the secondary infection analysis, GB/T 2930.2—2001
Generation #GB28301982 Chapter 4
This standard is applicable to the purity analysis of the quality inspection of pasture seeds, Bikun point seeds and other crops seeds. 2 Reference standards
The following standards contain provisions that are generally quoted in this standard and become the meaning of this standard: When the standard is published, the versions shown are valid. All standards will be revised, and the sales force should explore the possibility of using the following latest versions. 3530—231 Inspection process
GB/T293C.:2K11 Forage grass species control test procedures and variety identification G/T$170~9N7 numerical static specification
3 Inspection
Purity analysis of the daily drug test sample to determine the mutual percentage of each component, thereby accurately measuring the composition of the batch of non-specific composition of each species and impurities
4 Definition
This standard adds the following definitions.
4.1 Purity refers to the species selected by the tester or found during analysis, including all species 4.1.1. All seeds that can be clearly identified as having two nuclei, black fast dragging down or nematode rate, even if they are not mature, small, shrunken, or have developed improperly, should be regarded as clean seeds. 4.1.1.1.1. All seeds that can be clearly identified as having two nuclei, black fast dragging down or nematode rate, even if they are not mature, small, shrunken, or have developed improperly, should be regarded as clean seeds. 4.1.1.1.1. All seeds that meet the requirements of Appendix A (Appendix of the Standard) should be regarded as complete seeds that are clearly defined in the Appendix A (Appendix of the Standard). Gramineae
The fruit of the old fruit of the grass family has a clear frontal fruit containing new milk. Naked seed effect.
b) Family
Small charm flower (ra) Grass (M) and. Bean grass ( () In the middle, the seeds are multiple. In the genus (point), there are or are not equal or each seed contains one seed. In the genus (osaes), there are or are especially sucking fruits, except for the genus (esyree) which are seedless, with or without seeds. 4.1.1.2 The seeds are of the same size as those of the species 4.1.2. According to the above principle, the following exceptions are made. The national quality and technical supervision book is the same as 200F·0314 approved on 2001-06-01.
6.1.2.1. Agryrun, Festuca and Lentulus. The seeds of Agryrun, Festuca and Lentulus that contain one head of small flowers, the fruit of which is larger than one-third of the length of the seedling, or other plants and less than one-third of the length of the seedling, shall be classified as impurities. The seeds of other plants that contain small flowers and fruits shall be classified as secondary species. b) Arrhrazhera, Avena, Fremus, Ches, CS, HS, Nigella, Sm, and S. spp., if the florets attached to the fertile/flowers do not need to be removed, they are all clean seeds.
) Multiple seeds are listed as clean seeds according to the definition of multiple seeds A1., () seeds of other genera (such as saplings, etc.) do not need to remove their attachments and are all listed as clean seeds. 4.1.2.2 Leguminosae
! Seeds with peeled seed coats (including whole seeds and broken seeds) are listed as impurities. ) The seeds with leaves separated from the seeds (excluding the axial axis or seed coat only) are listed as impurities. 4.7 Other seeds of other species Any plant seed unit other than pure seeds can also be classified as other substances or structures according to the definition of pure seeds (4.1), with the following exceptions: a) Those not specified as seeds or substances in the standard (annex A) must be separated from the fruit or fruit and the outer seeds must be taken out as the impurities: non-structures are listed as impurities.) Seeds of other species (except 4.3) are listed as impurities. The impurities mentioned in 4.3 include the following seed units and all other substances and structures except pure seeds or other plant axes: ) those not containing true seeds, ) those small flowers smaller than the fruit size specified in 4.1..1). c) Sterile florets except those specified in 1.1.2.1, d) Smaller than or equal to half of the original size, cracked or damaged by seed fragments. e) Seed attachments not specified in 4.1.2.1d): [Seeds of the family Fragrant, with seed coat completely removed, or (or) more than half the size of the seed, but with separate leaves of the family Leguminosae.
The brittle and easy to get pregnant white color without any negative effect on the species. The sterile florets under the pedicels, empty pieces, internal and external scales, rice barrenness, purple, flowers, fruits, money, insects, true bodies (such as ergot, aldehyde nuclei, black disease single seed clusters), mud, sand, stone and all other substances that extend into the seeds. 1) Use the homogenous blowing method to separate the light part except for the other test species, and change the heavy part except for the net seeds and other drugs.
5 Analysis principles
The test sample shall be divided into weak and weak parts for analysis, and the weight of each part shall be determined. In the evaluation, all anti-inflammatory species and impurities in the marketed products shall be selected as much as possible. If necessary, they can be selected according to the requirements to determine the weight percentage of a certain inflammatory substance or a certain type of impurity.
6 Apparatus
Through) Clarity table, reflective translucency instrument.
h? Heart-shaped divider.
Equalizing air blower:
: 1) Hand-held magnifying or bi-monthly microscope
GR/T 793.2-2001
c2 Consider the expansion of . 1, . 1, 0. 001 and 0. 1 mg of Tianxin! Not called a light set of teachers,
2) Porcelain plate, sample plate, sample sentence, saw, sample plate (point), etc. 7 Inspection Procedures
7.1 Inspection of large mixed products (or samples with a minimum cleanliness rate) If there are any impurities in the sample size, such as stones, clods or large seeds, the seeds shall be sieved or weighed again, and the heavy impurities shall be separated and the percentage of impurities shall be calculated. 8.5. 7.2 Sample Selection for Test
The sample for cleanliness analysis shall be taken from the sample for inspection in accordance with the provisions of CB/T293,121.2. The sample shall contain at least 2500 seeds or meet the requirements of GR/T7937.1-9001 Table 1. The net reduction test sample can be a test sample (called a full sample) or a half sample (half of the test sample) with a specified weight, and each sample is collected and analyzed. The test sample is weighed and expressed as "". The number of decimal places specified in Table 1 is correct to meet the requirements of calculating various percentages to one decimal place. Weighing and decimal number of samples are selected and divided into two groups. 1.900G or less 1. .>--9. $99
JG. C3--:5. 9:
100. 0t--959. H
1 000 or: 7.3 Test specimens shall be separated into the following components: 7.3.1 After the test specimen (or half specimen) has been weighed, it shall be separated into the clean seeds according to the provisions of Chapter 1. 7.3.2 The clean seeds shall be separated only by means of instruments, mirrors or other tools without damaging the seeds. 7.3.3 When it is difficult or impossible to separate the clean seeds, the seeds shall be inspected by a microscope or other tools without damaging the seeds. When distinguishing between species, the following method is used for determination:) In the individual result report, only the genus name is reported, and all the seeds are "clean" seeds. No notes are added for the description.) The seeds separated or separated from other species are called the same. Ten or more seeds are randomly selected from the mixture, and this part is separated and the ratio of each individual seed to the seed is determined. From this ratio, the white content of the entire sample at each point can be estimated (see Appendix [standard recommendation]). After measurement The results shall be included in the seed efficacy test results. ) The operation specified in GB can be used to make the germplasm described by the tester for shearing disease (A black cause, natural non-garden and sheep F o etc.) .3.4 After the score is scored, the score shall be leveled, expressed as g, and the percentage shall be expressed as 8. Calculation and expression of results 8.1 Check the increase of the score after the grain is protected. Check the whole sample For two and a half samples, the sum of the weight of the total and the weight of the sample before analysis should be compared with the weight of the sample before analysis. If the weight of the material increases or decreases during analysis, it must be re-analyzed and the re-analysis results reported. 8.2 Calculation of the percentage of weight at each wavelength
After analysis, the percentage of net weight, weight of other substances and impurities should be calculated separately: The weight of the sample to be tested must be 17
GR/T 29302—2001
is the sum of the various components after analysis, not the initial percentage before analysis. When the whole sample is analyzed, the percentage of each component is calculated to one decimal place. When the half sample is analyzed, all the components of each half test column should be analyzed and calculated separately, and the percentage should be retained to at least two decimal places. Then, the percentages of the same components in each sample are added together, and the average percentage of each component is calculated, and the results are calculated to one decimal place. When the content of a certain species or a multi-seed seed of the vegetable being measured is relatively high (equal to or greater than 1%) . The white content should be calculated separately, and the scientific name of the pure seeds and other rejected species as well as the species name and impurities must be written on the record: Seeds that cannot be identified late can be allowed to be identified.
8.3 Check the difference between the two half-test or two full-test samples of the sample. The difference between the weight of one component of the sample shall not exceed the scientific requirement C (see Appendix 1 of the standard). The actual distance between the names of all components is within the allowed range, and the average value of each component is calculated. If the actual difference of one component exceeds the tolerance, the following steps shall be followed:
) Re-analyze the components in pairs. The difference of one component in a pair is within the tolerance range (all analyses are not allowed).
b) If the difference between a pair of components exceeds the tolerance twice, the result cannot be guaranteed. After the quantitative results of the various component percentages, the weighted average pseudo-value is calculated in the sample list.&3-2 If two or more full test samples of two different test samples of the same batch are to be compared and analyzed, the actual difference between the components of the two samples shall not exceed the permissible difference shown in Table 2 of Appendix C (Appendix C). If all components are within the tolerance range, their average value shall be calculated; if one component exceeds the permissible difference, and the difference between the most sensitive value and the most sensitive value after analysis exceeds the permissible difference, the weighted average of the two values shall be used. In one sample, if a result is obviously positive but not positive, then the result shall be ignored. Subtotal .84 The calculation process of the result of the calculation of the number of the components should be in accordance with the provisions of the B door. The final result of each component should be rounded off to one digit. The net component with no net content is not included in the calculation and is recorded as "trace". The sum of the remaining components should be 3. If the total sS.9 changes to 1CC.1%, the maximum value of the component to be considered is increased or decreased by G.1.8.5. The result of the large impurities is converted to
The net seed and grass percentage is calculated according to formula (1), the other waste species percentage is calculated according to formula 2), and the weight percentage of the raw materials is calculated according to formula (3):
P, (%) =P, ×=
Where: M——Test sample weight · 100||tt| ... 2930.22001Www.bzxZ.net
Appendix A
Appendix A)
Additional definitions
) Fruit with a seedling, with small flowers or small florets. The fragrance, fragrance, fragrance, and awn are not recommended. b) Awning or too awning, with internal and external flowers, and the excitement is
d) More than half the size of the broken fruit. A2 Ice (t)
a) Awning or too awning, with small flowers inside and outside the fruit b) Fruit.|| tt||Heart) looked at the broken cat half the size of the original rice. 11.3 Issue
With awns or some, naturally, the small fruit inside and outside is wrapped with melted fruit, the rest is the same as A:.2.
1.: Screen (Arra)
) With awns or no awns, with title pieces, floating outside the small healthy fruit. b) There is "effective without material wrapped if the small flowers of the fruit. The rest of the time Al.1e), d)
A1.5 British iAmamas
a) There are or dead species of the reverse species.
h) File over the original small firm, with or without seed branches of damaged lemon A1.6 Flower Thatch Garden (niaxarum)
" In \: Cheng has no attachment and does not give external secrets, with small flowers inside and outside the title fruit. ) There are small fruits that are itchy inside and outside.
Number of fruits,
> ... ) with awn or rays, with small fruits with internal and external translation.
i) Broken fruits larger than the size of a palm, GB/T 2930.2-2001
The whole sugar formed by more than one floret can constitute a seed unit, when it is formed by the following selection (regardless of whether there is a left fertile floret, it is called a silk particle unit (M)
One fertile floret attached to a sterile or infertile floret, extending to or through the end of the floret (excluding the awn) in Figure 1 8~19,
One fertile floret is also called one or more fertile florets (minus any length of florets (attached 1-5--)) A fertile floret part is attached to any floret or (see Figure) T
1 refuses to protect the complete light seeds, and the certificate has no seed eggs. 2 The seed floret is selected from the outside by School grass with small flowers, 3) for the grams of light other types (see Figure 14 - for the number of treasures
: A reward point generation non-fertile small mouth color representative of the technical fertile small flowers, complex
1 single grain and effective grain species in the unit classification
A1.10 grass (Bnuchiaria)
company! Mouse with human pregnancy, there are pieces of internal and external storage package consulting learning small accumulation b1 in the internal and external floating package if the fruit of the small.
Soft boundary:
1) from the urine to the size of half the broken fruit. A1.71 cited friends edited Bremws)
Al.1 camel cut smoke (Ceraraie)
same as Al.8.
A1.13 Hook grass bottom (Chtoris)
With collar pieces, containing or containing ripe fruit, etc., not self-changing, small flowers of the small virtue. Not common external secret, internal sample, secret pulling segment, flower and right t,
Total Al[b,e,d.
A1.14 There are genus: Cch7m
Li obviously no species in the external net fruit, not guilty fruit slightly reduced crown hair with or without. The rest can be A1.&b),t),d).
115 Dog tooth
A1. 15p# room s)
A17 Zhong Zhou Firanew
Company A1.10,
1.18 Yuehai
With internal and external sample package to the first heart flower: when the core length exceeds the small war, the whole when not included. Its gold is the same as A..c:
A1.19 retreats)
A1.20 general screen (upper rgm
towards 41. 2.
A1.21 Erwwi/n
A1.1.
A:.22 Fescue iFestucu
Same as A1.9.
A1.23 Hecs
GD/T2930.22001
With collar, inner fruit, and small flowers, with art or large small flowers, and other spaces A.2.
A1.24 Hcrdeam
With small flowers inside and outside, with no flowers left, and no trees. Others can be A, 1 ),1,t)
A125 Lagerstroemia pactu)
Fruit with or without beak (pappus), but not obviously with seeds, except for the others A1.2..
11.26 Laijiedian 1mm
A1.27 Lor4m
a128 Chaomicaodian)
A1-29 Panic
Same as A1.10.
41.30 Paspainm
Using A1.10.
A1.31 Penisetm
Inflorescence with 1-5 small secretions. : Same as A1.6b)),d) except for the group with clear pregnancy, external release and emotional frequency.
Time ()
For if it is not the same, there are awns or there are also class flowers, with small flowers wrapped inside and outside the fruit. The same as A1. 6 6),c),d).
A1.33 Blue (F
1.34 Plantain (
A1.35 Early heat is not intense (P)
Can be attached to if the sterile small: in or especially awn, there are small sugars wrapped inside and outside the fruit. The rest are 41..
A1 36 Potyganan
GB/12930.2—2001
Fructus with or without perianth, except those obviously without perianth. Others Al.8b), c)d).
A1.37 Puccinella
Same as A1.35,
41.38 R
Company A36
41.39 RoeRterig
Company A1.18.
41.40 Black rrale
Same as Al. 1,d.
41.41 Stipa (m)
with light to double (or crown or thorn) thin picking, but obviously without and seeds, the rest of the time A[.8b),), d).
A1.42 high net ()
same as A1-1
A1.43 Stipa (S)
41.44 knot thick (20a
color has a new piece of stem inside and outside the sample package of the fruit spikelets. Out, the number of pieces, the record of the two pieces of busy photo state of the inside and outside elements are fully wrapped, there is + memory degradation, the rest of the time A1.12)
A2 recommended variant in
This standard is the same shell seeds refer to the seeds with shell release, and the quality is in and adhere to each other, or not easy to be eliminated, very will or liver-like seeds. If there is a kind of porcelain (including one third or more of a sample of active floating Li Book convex), it is considered that the work is in the sample. According to the above definition, there are recommended outer categories that include single, corner, feeling, suction climate, tender bottom, yellow flower festival, blue grass screen, steamed An net, shape grass, home An camel Zizhan Longwei car, dog tooth peach, duck mountain milk fast high Picheng grass, suction friend grass bottom, charcoal age grass milk, cow grass Ming, pure hair grass pressure, big Li wine, camp temperature, fragrant to bean recruitment, Lai grass meat, black grass, blue grass thick grass) () grass wind lake Zhuozhuang city || t t||The hot point of view is that the grass is sensitive to the wind and the grass is formed at high places: Appendix
(Standard record)
Analysis and calculation method for difficult to distinguish plant species B1 Analysis method
When the sample for inspection is small and it is difficult to distinguish between two species, the seeds of the same species should be separated from the other components. From this similar seed compound, 4((1-1(((seed pieces) are randomly collected and the collected pieces are divided again. After burning, the more trees of each species are determined.
B2 Estimation method
GB/T 2930.2 -2001
The percentage of a plant species (A) (A\>nuclear formula (A1) is used to calculate the net seed (H) grain formula：）Calculate according to test (A3):
With the weight of the species
200--1000×
P(%) = P, - A
5,(%)=aS+A
Wu Zhong:, one original (filter compound static seed percentage (3, one original other push compound percentage, %. The total percentage of the light reserve is 1. Appendix C
Standard Appendix:
Tolerance difference
Table of tolerance difference of the test sample of the test sample within the test sample (5% level determination)
State average result
Yuan--100
96. 65--10, 0C
53.96-- 99. 94
99.35--95.E9
93.3c--99. 61
93. F5-99. 79
99. 7c--39. 71
03.95-.95.60
00.60~-35.65
02.55~-90,F9
93. 3C- -96. F4
00. 40~ 39.43
99.30~.39.29
99. 2C-99.9
05.1u~.99.13
90.m~ 38.24
93.7538.c9
98. 90--08.74
P8.35~.08-43
98.0098.24
37.2:--07.00
97.00--97. 74 | | tt | 29
c. 35n. 54
C.35--4, 29
C. 43--1, 44
c.45--0, 40
G. 50-6. 50
c. 63~b, 6
C.73~.f,79
0. 8--. 89
G. 90- 11, 55
-. 25~-7. +9
-, 50~- 1. 76
1.75~1.53
2. nm~-2. 24
2. 25-- 2. 43
2. 50~2. 72
2. 76~ 2.99
With the same remaining allowance
Xin sample
! Students
have luminous seeds
full sample
! There are nine kinds of
Guangshu Jiusazi
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